Question: A plane surface 25 cm wide has its temperature maintained at 80C. Atmospheric air at 25C flows parallel to the surface with a velocity of

A plane surface 25 cm wide has its temperature maintained at 80°C. Atmospheric air at 25°C flows parallel to the surface with a velocity of 2.8 m/s. Using the results of boundary layer analysis, determine the following for a 1-m long plate:
a. The mean coefficient of skin friction, C_fL
b. The total drag force exerted on the plate by the air flow
c. The total heat-transfer rate from the plate to the air stream

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